Re: REPLACE_TOWLOWER='1'

[Bruno Haible]

Hi Sam,

> >> why is tolower replaced on linux?
> ...
> ac_cv_have_decl_towlower=yes
> 
> REPLACE_TOWLOWER='1'

Oops. that was a mistake yesterday. Thanks for having spotted it!

Fixed as follows.


2011-08-01  Bruno Haible  <address@hidden>

        wctype-h: Fix last change.
        * m4/wctype_h.m4 (gl_WCTYPE_H): If towlower is defined, set
        REPLACE_TOWLOWER to 0.
        Reported by Sam Steingold <address@hidden>.

*** m4/wctype_h.m4.orig Mon Aug  1 21:56:33 2011
--- m4/wctype_h.m4      Mon Aug  1 21:54:29 2011
***************
*** 1,4 ****
! # wctype_h.m4 serial 15
  
  dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
  
--- 1,4 ----
! # wctype_h.m4 serial 16
  
  dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
  
***************
*** 82,107 ****
    if test $REPLACE_ISWCNTRL = 1; then
      REPLACE_TOWLOWER=1
    else
!     AC_CHECK_DECLS([towlower],,,
!       [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
!            included before <wchar.h>.
!            BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
!            must be included before <wchar.h>.  */
!         #include <stddef.h>
!         #include <stdio.h>
!         #include <time.h>
!         #include <wchar.h>
!         #if HAVE_WCTYPE_H
!         # include <wctype.h>
!         #endif
!       ]])
!     if test $ac_cv_have_decl_towlower = yes; then
!       dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and
!       dnl towupper() although it does not have the functions. Avoid a 
collision
!       dnl with gnulib's replacement.
!       REPLACE_TOWLOWER=1
!     else
        REPLACE_TOWLOWER=0
      fi
    fi
    AC_SUBST([REPLACE_TOWLOWER])
--- 82,112 ----
    if test $REPLACE_ISWCNTRL = 1; then
      REPLACE_TOWLOWER=1
    else
!     AC_CHECK_FUNCS([towlower])
!     if test $ac_cv_func_towlower = yes; then
        REPLACE_TOWLOWER=0
+     else
+       AC_CHECK_DECLS([towlower],,,
+         [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
+              included before <wchar.h>.
+              BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
+              must be included before <wchar.h>.  */
+           #include <stddef.h>
+           #include <stdio.h>
+           #include <time.h>
+           #include <wchar.h>
+           #if HAVE_WCTYPE_H
+           # include <wctype.h>
+           #endif
+         ]])
+       if test $ac_cv_have_decl_towlower = yes; then
+         dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and
+         dnl towupper() although it does not have the functions. Avoid a
+         dnl collision with gnulib's replacement.
+         REPLACE_TOWLOWER=1
+       else
+         REPLACE_TOWLOWER=0
+       fi
      fi
    fi
    AC_SUBST([REPLACE_TOWLOWER])

-- 
In memoriam Marie Trintignant <http://en.wikipedia.org/wiki/Marie_Trintignant>